(19)

(11)

EP 4 186 231 A1

(12)

(43) Date of publication: 31.05.2023 Bulletin 2023/22 (21) Application number: 21754839.5 (22) Date of filing: 20.07.2021

(51) International Patent Classification (IPC):  H04N 9/31(2006.01) G06F 3/01(2006.01) G06T 7/80(2017.01) (52) Cooperative Patent Classification (CPC): G06T 2207/30204; H04N 9/3194; G06T 7/80; H04N 9/3179; G06F 3/011; G06V 20/20 (86) International application number: PCT/IB2021/056551 (87) International publication number: WO 2022/018635 (27.01.2022 Gazette 2022/04)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 21.07.2020 IT 202000017653 (71) Applicant: Politecnico di Milano 20133 Milano (IT)	(72) Inventors: CASCINI, Gaetano 20156 Milano (IT) CARUSO, Giandomenico 20156 Milano (IT) BECATTINI, Niccolò 20156 Milano (IT) MOROSI, Federico 20156 Milano (IT) (74) Representative: Penza, Giancarlo  Bugnion S.p.A. Viale Lancetti, 17 20158 Milano 20158 Milano (IT)